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Showing 1 to 20 of 21 for “"SDNN"”.

  1. Effect of Moderate Versus High-Intensity Interval Exercise Training on Heart Rate Variability Parameters in Inactive Latin-American Adults: A Randomised Clinical Trial

    Téllez Tinjaca, Luis Andrés, Tordecilla Sanders, María Alejandra, Camelo Prieto, Diana, Hernandez Quiñonez, Paula Andrea, Correa Bautista, Jorge Enrique, Ramirez Campillo, Rodrigo, Izquierdo, MikelUniversidad del Rosario2017

    … kcal. Supine resting HRV indices (time domain: SDNN, standard deviation of normal-to-normal intervals; rMSSD, Root mean square successive difference of RR intervals and frequency domain: HFLn, high-frequency spectral power; LF, low-frequency spectral power and HF/LF ratio) were measured at …

    rosario Repository record

  2. Metabolic Syndrome, Inflammation, Heart Rate Variability, and Fitness in Obese African American Youth

    Fleming, Belinda J.2016

    … monitor and measures of circadian fluctuation (SDNN), parasympathetic function (HF), and sympathetic/ parasympathetic balance (LF/HF ratio) were calculated. Measures were repeated at 6 months. Data were analyzed using descriptive statistics, Pearson’s correlation coefficient, non-parametric …

    tenn-hsc Repository record

  3. The Effects of Glucose Tolerance, Hypertension, and Race on Heart Rate Variability, QT Interval Duration, and Left Ventricular Hypertrophy in Overweight-Obese Adolescents

    Lee, Shirleatha T.2016

    … domain measures of circadian fluctuation (SDNN) and parasympathetic function (high frequency; HF) using Multi-parameter Arrhythmia Review Station (MARS) PC Analysis and Editing system. QTc and Cornell voltage (S<sub>v3 </sub>+ R<sub>aVL</sub>) measurements for LVH were obtained from a …

    tenn-hsc Repository record

  4. Autonominės nervų sistemos įtaka vazomotorinėms nosies reakcijoms /

    Ivaška, Justinas,Institutional Repository of Vilnius University2009

    … defined that heart contraction rate indicators SDNN and HVR index may be used as indicators assisting to prognosticate vasomotor reactions of the nasal soft tissues. Indicators of the heart contraction rate variability RMSSD, SDSD, pNN50, SDNN Index are statistically reliable in reflecting the …

    vilnius Repository record

  5. Military Sexual Trauma Exposure and Heart Rate Variability Outcomes in Female Veterans

    Lee, Elizabeth Ann Davis2016

    … deviation of all normal to normal intervals (SDNN) and log transformed square root of the mean of the sum of the squares of differences between adjacent normal to normal intervals (RMSSD) were the primary comparison outcome measures and were derived from the mean of three 10-second ECG or …

    tenn-hsc Repository record

  6. The association of physical activity with prediabetes/type 2 diabetes and cardiac autonomic function

    Pooni, Rubin Kaur2024

    … were used to examine differences in RMSSD and SDNN in groups cross-classified by MVPA or SED with pre/T2D, adjusting for age, body mass index, sex, education, nutrition, smoking status, alcohol use, cardiovascular disease, and MVPA or SED where appropriate. Having pre/T2D, regardless of MVPA or …

    york Repository record

  7. The Relation of Heart Rate Variability and Body Weight Change in Conducting Community-based Obesity Control Program

    이, 현주2011

    … Rate (MHR), Standard Deviation of N-N interval (SDNN), RMSSD (Root-Mean-Square of Successive Differences), Total Power (TP), Low Frequency(LF), High Frequency (HF), LF/HF ratio를 측정하였다. 비만 치료는 정형화된 식사요법과 운동, 행동교정을 병행하였다. 비만 치료 12주 후에 신체 검사 및 혈액 검사를 다시 하여 그 변화 정도와 기저 HRV와 비교하였다. 결과: 총 102명의 대상자 중 …

    ajou Repository record

  8. Analysis of Heart Rate Variability in Female Patient with Overactive Bladder

    김, 영부2011

    … 결과: 심박동수 변이의 time domain 지표 분석에서 환자군의 평균 SDNN (standard deviation of NN interval)와 RMSSD (square root of mean squared difference of successive NN intervals)는 대조군과 비교하여 통계적인 차이가 없었다. 심박동수 변이의 frequency domain 지표 분석에서 환자군의 total power (TP), high frequency (HF)는 대조군과 비교하여 통계적으로 유의하게 감소하였고, …

    ajou Repository record

  9. Design and implementation of heart rate variability measures in the time domain

    Mathews, Binoy John

    … Five parameters in the time domain namely SDNN, SDNN index, SDANN, rMSSD, pNN5O, and two in the frequency domain, namely the low and high frequency band areas. The designed programs were then tested on sample data files. Results of these tests were then validated by verifying them with …

    njit Repository record

  10. Influence of Pre-pregnancy and During Pregnancy Exercise On Infant Heart Outcomes

    Langford, BenjaminEast Carolina University2017

    … Measures of HRV included for analysis were SDNN, RMSSD, Total Power, VLF, LF, HF, and LF:HF ratio, which are representative of improved sympathetic, parasympathetic, and overall autonomic development. Participants were analyzed using t-tests between active and inactive women before …

    ecu Repository record

  11. Measurement of the effectiveness of enhanced external counterpulsation on heart rate variability for patients with myocardial ischemia

    Jayaraman, Kripa

    … using the LabVIEW 5.0 software. The time domain-SDNN analysis was also performed using MATLAB. The results of this study fail to indicate conclusively that the EECP treatment affects the heart rate variability of the patient in a significant way. This was evidenced by conducting Power Spectral …

    njit Repository record

  12. Biobehavioral Correlates in Fibromyalgia

    McNallen, Ann Trivigno2017

    … negatively correlated with mean RR interval. SDNN was correlated with RR interval and negatively correlated with AHI. The hypothesis tests related to construct validity of the ASP indicated no significant supportive correlations.</p>

    vcu Repository record

  13. Measurement of Autonomic Function in Renal Disease and Diabetes

    Cashion, Ann King2016

    … In addition, measures of 24-hr HRV (time-domain: SDNN, SDANN, RMSSD; frequency-domain: total power, low and high frequency) and symptomatology were obtained.</p> <p>Study 1 examined the development and psychometric testing of the Autonomic Symptom Checklist (ASC), an instrument designed to assess …

    tenn-hsc Repository record

  14. Effect of Postmenopausal Hormone Replacement Therapy on Heart Rate Variability

    Pace, Diane Todd2016

    … for values of PNN50 and rMSSD. Decreases in SDNN and SDANN were unexpected and merit further investigation.</p> <p>White PMW showed no significant differences before/after HRT ; Black PMW demonstrated significant improvement in TotalHertz (p=.01), LowHertz (p=.03), HighHertz (p=.01), and …

    tenn-hsc Repository record

  15. Physical Activity, Heart Rate Variability, Sleep Parameters, and Glycemic Variability in T1D

    Pei Chen (252989)2026

    … outcomes was context-dependent. Notably, higher SDNN in combination with greater MVPA was associated with reduced time in range (TIR), suggesting that autonomic flexibility may amplify glucose fluctuations during higher-intensity activity. ISM analyses further revealed that reallocating 30 …

    uic

  16. Overexpression of human Cu/Zn Superoxide Dismutase in Mice; The Effect of Increase Superoxide Scavenging on Autonomic Control of the Heart.

    Hatcher, Jeffrey

    … beat-to-beat variability between SOD1 and C57 (SDNN: C57: 2.78 ± 0.20, SOD1: 2.89 ± 0.27), although frequency-domain analysis uncovered a significant reduction in the low-frequency power component of the HRV power spectral distribution (C57: 1.19 ± 0.11, SOD1: 0.35 ± 0.06, P < 0.001). This study …

    ucf

  17. Relaçao entre aptidao fisica funcional, risco cardiovascular, actividade do sistema nervoso autónomo e qualidade de vida relacionada com a saúde em mulheres idosas sedentárias

    Ribeiro Pires, Carla Sofía2015

    … actividad simpática del SNA (LF = 0.06 0.03 Hz; SDNN=113.54 668.54 ms), y una actividad parasimpática del SNA un poco más alta (HF=0.27 0.08 Hz; rMSSD=57.61 99.38 ms; PNN50=13.54 22.72 %). Se han verificado diferencias significativas entre los individuos con un peso normal (PN) o exceso de peso …

    sevilla Repository record

  18. THE INFLUENCE OF EXERCISE BEFORE AND DURING PREGNANCY ON OFFSPRING HEART FUNCTION AND DEVELOPMENT

    Morales, StephanieEast Carolina University2020

    … of Infant HRV included for analysis were SDNN, RMSSD, LF, HF, and LF:HF ratio, which are representative of improved sympathetic, parasympathetic, and overall cardiac autonomic nervous system control. Data were analyzed using t-tests between active and inactive women before pregnancy or …

    ecu Repository record

  19. The effect of aerobic base training on heart-rate variability and performance in elite youth football players

    McWhirter, LiamOxford Brookes University2017

    … the most reliable indices were MeanRR, rMSSD and SDNN. There were no significant differences between groups for any parameters, including HRV (<0.05). Although not significant there was an increase in time to exhaustion for the intervention group (effect size 1.17). There was a positive …

    oxford-brookes Repository record

  20. Efeitos da Síndrome de Down sobre ajustes termorregulatórios e cardiovasculares durante o exercício físico

    Gonçalves, Paulo HenriqueUniversidade Federal de Viçosa2017

    … nenhuma diferença para os índices Media RR, SDNN, RMSSD e PNN50. Efeito do grupo (F= 8,756, p= 0,005), efeito do tempo (F= 0,826, p= 0,536) e interação grupo x tempo (F= 0,520, p= 0,760). No domínio da freqüência não houve diferença estatística nos parâmetros VLF e LF/HF em nenhum dos …

    brazil-ufv Repository record

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